Let us assume the width of the rectangle = x inches Then The length of the rectangle = 2x inches The perimeter of the rectangle as given in the question = 48 inches We already know Perimeter of a rectangle = 2 (Length + Width) 48 = 2 (2x + x) 48 = 2 (3x) 48 = 6x x = 48/6 = 8 So The width of the rectangle = 8 inches And The length of the rectangle = 2x = 2 * 8 inches = 16 inches from the above deduction, we can easily say that the length of the rectangle is 16 inches and the width of the rectangle is 8 inches.